Ko thuya

//some lgoical errors, fixing it
#include <iostream>
#include <algorithm>
using namespace std;

int main (){
int i = 0,v = 0 ,t = 0,a ; //declaration for loop counter, input value, total and average integers;

/*
i =  counter
v = value
t = total
a = average

*/
//cin>>v;
//bool terminate (false);
while (v =! 99)
{
    cin>> v; //user input

    if (v < 0 || v>10)
{
    cout<< "value must be in range of 0 to 10 \n";
}
    else
    {
        i++;
        t += v;
    }
};

if ( i == 0 ) {
 a = 0;
}
else {a = t/i;}

cout<< "average : "<< a;
}